The Crinoids from Dr. S. Bock's Kxpeuition to Jaran I!>I4. I3J) 



also very miieli more narrow on the inside; slight synai-thrial tubercle 

 between Br 1 and 2. The distance h-oni the R— s to the first syzygy 

 is 3,2 mm. After Br 12 oblique joints. Ex, of syzygies: 3-<-4, 9 + 10, 

 14 + 15, 21 ~ 22 or 8 + 4, 9 + 1()! 16 + 17, 20 + 21 etc. with an interval 

 of 3 oblique ar-tieulaiions. The first 10 Br — s with the distal margins 

 somewhat thickened and bent outwards; distally the arms are smooth. 



Pi ih 30; (i mm. The 5 first segments with notches (as in for in- 

 stance Ps. niira), shorter than long to cubical; then the segments are 

 slender, more or less hour-glass-shaped, L ^ 1 Va— 2 bi-, the whole pin- 

 nule very slender and \\'hip-shaped, P., similar, + -•'; ^2 '^ — l^j '^i^ — "^ 

 mm. (First 3 segments shorter than long, the following ones L ~ 2 — 

 2 '2 br. From the 5"'— the 8"' segment a large genital gland; P.> stouter 

 than Pj). Pb similar, 11 segments. 1\ 11; 3,7 mm. Distal p. 10; 5.5 mm. 

 (P' and 2 segments short, 3'' and the following ones long and slender, 

 L=2 '/2 — 3 br, the articulations somewhat swollen). 



Disk a little incised, 4,5 mm., without granules. Anal tube 

 2,3 mm. The ossicles white, the weak parts yellowish (on the pre- 

 served specimen). 



The above-described new species is a rather interesting type. 

 By the formation of Cd it documents its relationship to the subfam. 

 ZenQinetrrme. The formation of cii-ri and Pj both hint at the above- 

 mentioned subfamily as well as the subfam. 'Ihysanoinetrinw (Both these 

 characteristics are however common both to TJiysanometrince and to a 

 couple of genera in Zenomeirinaj. And finally — and this is the really 

 strange condition — the animal has a large genital gland on 1^2* 

 a phenomenon elsewhere found in Ps. anomala, in Baihipnetrinw, and 

 exceptionally in Anledoninw (Compare Conipsometra parviflora). Of late 

 A. H. Clark has shown that a genital gland on V^ does not occur 

 in all species of Balhyvietrina' (as he at first supposed), though it is a 

 very usual characteristic in the subfamily mentioned. 



It is perhaps not an accident that this chai-acteristic, otherwise 

 common to tlie BaiJupneiriva\ is found in Zenomeirin forms. This is 

 an additional support for A. 11. Clark's supposition (though possibly 

 not a veiy important one. considering that a genital gland is also found 

 exceptionally in the Antedoniiue) that the two first-mentioned subfamilies 

 might be more closely i-elated. To be correctly understood. I will say, 

 however, tliat, contrary to A. H. Clark, 1 am more inclined to think 



